diff options
| -rw-r--r-- | exercises/23_conversions/as_ref_mut.rs | 5 | ||||
| -rw-r--r-- | solutions/23_conversions/as_ref_mut.rs | 5 |
2 files changed, 6 insertions, 4 deletions
diff --git a/exercises/23_conversions/as_ref_mut.rs b/exercises/23_conversions/as_ref_mut.rs index 54f0cd1..d7892dd 100644 --- a/exercises/23_conversions/as_ref_mut.rs +++ b/exercises/23_conversions/as_ref_mut.rs @@ -2,10 +2,11 @@ // about them at https://doc.rust-lang.org/std/convert/trait.AsRef.html and // https://doc.rust-lang.org/std/convert/trait.AsMut.html, respectively. -// Obtain the number of bytes (not characters) in the given argument. +// Obtain the number of bytes (not characters) in the given argument +// (`.len()` returns the number of bytes in a string). // TODO: Add the `AsRef` trait appropriately as a trait bound. fn byte_counter<T>(arg: T) -> usize { - arg.as_ref().as_bytes().len() + arg.as_ref().len() } // Obtain the number of characters (not bytes) in the given argument. diff --git a/solutions/23_conversions/as_ref_mut.rs b/solutions/23_conversions/as_ref_mut.rs index af62e2d..a5d2d4f 100644 --- a/solutions/23_conversions/as_ref_mut.rs +++ b/solutions/23_conversions/as_ref_mut.rs @@ -2,9 +2,10 @@ // about them at https://doc.rust-lang.org/std/convert/trait.AsRef.html and // https://doc.rust-lang.org/std/convert/trait.AsMut.html, respectively. -// Obtain the number of bytes (not characters) in the given argument. +// Obtain the number of bytes (not characters) in the given argument +// (`.len()` returns the number of bytes in a string). fn byte_counter<T: AsRef<str>>(arg: T) -> usize { - arg.as_ref().as_bytes().len() + arg.as_ref().len() } // Obtain the number of characters (not bytes) in the given argument. |